What is the difference between X-RAID and X-RAID2?
X-RAID2 is the 2nd generation of ReadyNAS’s proven patent-pending Auto-Expandable RAID technology and can be found on the ReadyNAS NVX, Pro, 2100 and 3200 models. X-RAID2 automates the volume expansion for you as you scale from 1 drive to 4, 6* or even 12* drives while keeping your data online (*depending on the model). Additionally, as your storage requirement grows, you can replace your disks with larger capacity ones, and X-RAID2 automatically and incrementally expands your storage vertically. No other NAS devices in this class can do this without reformatting your disks and shuffling your data back and forth. With the first generation of X-RAID volume expansion only occurs after all disks have been upgraded. With X-RAID2 volume expansion will occur as soon as there is additional protected space. See X-RAID2 in action: http://www.readynas.com/?cat=53 Additionally, the ReadyNAS Pro and 3200 both support RAID levels 0, 1, 5, 6, and NETGEAR’s patent pending X-RAID2, with hot spare capa
